Security Centres 808 Technical Specification, General, Power Supply, Output Protection, Battery

Models: 808

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Technical Specification

808

Technical Specification

General

Operating temperature

= -10º - +40ºC.

Humidity

= 80% RH.

Dimensions (end station)

= h x w x d 300 x 300 x 80mm.

Weight (end station)

= Approximately. 5Kg.

Power Supply

 

 

 

 

System Power Supply

 

(Ambient Temp. 20 º. C)

= 900 mA.

With the system quiescent, this supply is used as follows:

808 end station

= 90 mA.

Each Remote Keypad

= 60 mA.

The remaining current is available for recharging the battery, and supply attached devices through the 12V Aux terminals on the main connector.

With the system in alarm the battery can supply current additional to the maximum available from the system power supply.

Output Protection

Self resetting thermal Polyswitches protect outputs at the following levels:

12V Aux

=1,350mA.

Keypad 12V

= 500mA.

Siren

= 750mA.

Batt (reverse connection)

= 2,500mA.

Bell, Strobe and OP1 are open collector outputs rated at 500mA.

Battery

 

Standby Battery

= 12 Volt, 6.5AH rechargeable lead-acid, Gel

 

Type battery.

Battery Space

= h x w x d 150 x 110 x 75 mm.

Keypad Wiring

Recommended maximum distances for the remote keypads from the end station, using standard alarm cable is 100 metres per branch for the star configuration.

For a daisy chain configuration the maximum length must take account of the number of keypads sharing the cable. In general, a single keypad can be connected at the end of a maximum of 300m of standard cable. If you wish to connect more keypads the cable must be shorter, or the 0V wire must be thicker. The criterion is that at the last keypad the voltage between 0V and 12V wires must be no less than 10.5V.

496336 Issue 1

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Security Centres 808 manual Technical Specification, General, Power Supply, Output Protection, Battery, Keypad Wiring